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http://dx.doi.org/10.1001/archneurol.2010.182 | DOI Listing |
Acta Physiol (Oxf)
February 2025
Institute for Molecular Medicine, Health and Medical University Potsdam, Potsdam, Germany.
Ca and Mg are essential nutrients, and deficiency can cause serious health problems. Thus, lack of Ca and Mg can lead to osteoporosis, with incidence rising both in absolute and age-specific terms, while Mg deficiency is associated with type II diabetes. Prevention via vitamin D or estrogen is controversial, and the bioavailability of Ca and Mg from supplements is significantly lower than that from milk products.
View Article and Find Full Text PDFBMJ Case Rep
January 2025
Pediatrics, Lokmanya Tilak Municipal General Hospital and Lokmanya Tilak Municipal Medical College, Mumbai, Maharashtra, India.
Rickets in children usually present with skeletal manifestations. However, they can also rarely present with extraskeletal manifestations, one of them being respiratory insufficiency. We present an unusual case of a girl in early childhood with respiratory insufficiency, which turned out to be due to the underlying vitamin D-dependent rickets (VDDR).
View Article and Find Full Text PDFBackground And Aims: This study investigates the global impact of ambient ultraviolet radiation (UVR) on dementia incidence, addressing its controversial association with dementia risk. UVR, through both vitamin D-dependent and independent mechanisms, influences physiological processes essential for brain health, such as reducing neuroinflammation, improving sleep regulation, and enhancing neuroplasticity. This study aims to clarify the relationship between UVR and dementia incidence and evaluate its role in public health strategies for dementia prevention.
View Article and Find Full Text PDFPediatr Dermatol
December 2024
Paediatric Endocrinology Division, Department of Paediatrics, Christian Medical College Vellore, Vellore, Tamil Nadu, India.
Vitamin D-dependent rickets type 2A (VDDR2A) is a rare cause of infantile-onset alopecia, characterized by severe hypotrichosis, small cutaneous cysts, early-onset treatment-resistant rickets, and hypocalcemia. Alopecia, often starting a few weeks to months after birth, may be the presenting feature. We present three cases of VDDR2A with genetic variants in the vitamin D receptor (VDR) gene, their clinical features and biochemical parameters.
View Article and Find Full Text PDFJ Bone Miner Res
December 2024
Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.
Duan X, et al, report that CYP4A22 loss-of-function causes a new form of vitamin D-dependent rickets. Here we describe the basis for our rejection of their proposal and provide evidence that the CYP4A22 variant that they have identified (c.901del, p.
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